# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

MY_P="SDL2_mixer-${PV}"
inherit autotools multilib-minimal

DESCRIPTION="Simple Direct Media Layer Mixer Library"
HOMEPAGE="https://www.libsdl.org/projects/SDL_mixer/"
SRC_URI="https://www.libsdl.org/projects/SDL_mixer/release/${MY_P}.tar.gz"

LICENSE="ZLIB"
SLOT="0"
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~ppc ppc64 ~riscv sparc ~x86"
IUSE="flac fluidsynth mad midi mikmod mod modplug mp3 opus playtools static-libs timidity tremor vorbis +wav"
REQUIRED_USE="
	midi? ( || ( timidity fluidsynth ) )
	timidity? ( midi )
	fluidsynth? ( midi )
	mad? ( mp3 )
	mod? ( || ( mikmod modplug ) )
	mikmod? ( mod )
	modplug? ( mod )
	tremor? ( vorbis )
"

RDEPEND="
	>=media-libs/libsdl2-2.0.7[${MULTILIB_USEDEP}]
	flac? ( >=media-libs/flac-1.2.1-r5[${MULTILIB_USEDEP}] )
	midi? (
		fluidsynth? ( >=media-sound/fluidsynth-1.1.6-r1:=[${MULTILIB_USEDEP}] )
		timidity? ( media-sound/timidity++ )
	)
	mod? (
		mikmod? ( >=media-libs/libmikmod-3.3.6-r1[${MULTILIB_USEDEP}] )
		modplug? ( >=media-libs/libmodplug-0.8.8.4-r1[${MULTILIB_USEDEP}] )
	)
	mp3? (
		mad? ( >=media-libs/libmad-0.15.1b-r8[${MULTILIB_USEDEP}] )
		!mad? ( media-sound/mpg123[${MULTILIB_USEDEP}] )
	)
	opus? ( >=media-libs/opusfile-0.2 )
	vorbis? (
		tremor? ( >=media-libs/tremor-0_pre20130223[${MULTILIB_USEDEP}] )
		!tremor? (
			>=media-libs/libvorbis-1.3.3-r1[${MULTILIB_USEDEP}]
			>=media-libs/libogg-1.3.0[${MULTILIB_USEDEP}] )
	)
"
DEPEND="${RDEPEND}"

S="${WORKDIR}/${MY_P}"

PATCHES=(
	"${FILESDIR}/${PN}-2.0.4-slibtool.patch"
	"${FILESDIR}/${PN}-2.0.4-fluidsynth.patch"
)

src_prepare() {
	default

	# for slibtool patch in 2.0.4, can drop in future with eautoreconf
	rm aclocal.m4 || die
	eautoreconf
	multilib_copy_sources
}

multilib_src_configure() {
	local myeconfargs=(
		$(use_enable static-libs static)
		--disable-sdltest
		--enable-music-cmd
		$(use_enable wav music-wave)
		$(use_enable mod music-mod)
		$(use_enable modplug music-mod-modplug)
		--disable-music-mod-modplug-shared
		$(use_enable mikmod music-mod-mikmod)
		--disable-music-mod-mikmod-shared
		$(use_enable midi music-midi)
		$(use_enable timidity music-midi-timidity)
		$(use_enable fluidsynth music-midi-fluidsynth)
		--disable-music-midi-fluidsynth-shared
		$(use_enable vorbis music-ogg)
		$(use_enable tremor music-ogg-tremor)
		--disable-music-ogg-shared
		$(use_enable flac music-flac)
		--disable-music-flac-shared
		$(use_enable mp3 music-mp3)
		$(use_enable !mad music-mp3-mpg123)
		--disable-music-mp3-mpg123-shared
		$(use_enable mad music-mp3-mad-gpl)
		$(use_enable opus music-opus)
		--disable-music-opus-shared
		LIBMIKMOD_CONFIG=${EPREFIX}/usr/bin/${CHOST}-libmikmod-config
	)
	ECONF_SOURCE=${S} econf "${myeconfargs[@]}"
}

multilib_src_install() {
	emake DESTDIR="${D}" install
	if multilib_is_native_abi && use playtools ; then
		emake DESTDIR="${D}" install-bin
	fi
}

multilib_src_install_all() {
	dodoc {CHANGES,README}.txt
	find "${D}" -name '*.la' -delete || die
}

pkg_postinst() {
	# bug 412035
	# https://bugs.gentoo.org/show_bug.cgi?id=412035
	if use midi && use fluidsynth; then
		ewarn "FluidSynth support requires you to set the SDL_SOUNDFONTS"
		ewarn "environment variable to the location of a SoundFont file"
		ewarn "unless the game or application happens to do this for you."
		if use timidity; then
			ewarn "Failing to do so will result in Timidity being used instead."
		else
			ewarn "Failing to do so will result in silence."
		fi
	fi
}